Bioaggregate of photo-fermentative bacteria for enhancing continuous hydrogen production in a sequencing batch photobioreactor.


:Hydrogen recovery through solar-driven biomass conversion by photo-fermentative bacteria (PFB) has been regarded as a promising way for sustainable energy production. However, a considerable fraction of organic substrate was consumed for the growth of PFB as biocatalysts, furthermore, these PFB were continuously washed out from the photobioreactor in continuous operation because of their poor flocculation. In this work, PFB bioaggregate induced by L-cysteine was applied in a sequencing batch photobioreactor to enhance continuous hydrogen production and reduce biomass washout. The effects of the hydraulic retention time (HRT), influent concentration and light intensity on hydrogen production of the photobioreactor were investigated. The maximum hydrogen yield (3.35 mol H2/mol acetate) and production rate (1044 ml/l/d) were obtained at the HRT of 96 h, influent concentration of 3.84 g COD/l, and light intensity of 200 W/m(2). With excellent settling ability, biomass accumulated in the photobioreactor and reached 2.15 g/l under the optimum conditions. Structural analysis of bioaggregate showed that bacterial cells were covered and tightly linked together by extracellular polymeric substances, and formed a stable structure. Therefore, PFB bioaggregate induced by L-cysteine is an efficient strategy to improve biomass retention capacity of the photobioreactor and enhance hydrogen recovery efficiency from organic wastes.


Sci Rep


Scientific reports


Xie GJ,Liu BF,Wang RQ,Ding J,Ren HY,Zhou X,Ren NQ




Has Abstract


2015-11-05 00:00:00










  • Transcriptional enhancement of Smn levels in motoneurons is crucial for proper axon morphology in zebrafish.

    abstract::An unresolved mystery in the field of spinal muscular atrophy (SMA) is why a reduction of the ubiquitously expressed Smn protein causes defects mostly in motoneurons. We addressed the possibility that this restricted vulnerability stems from elevated Smn expression in motoneurons. To explore this, we established an ex...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Spiró Z,Koh A,Tay S,See K,Winkler C

    更新日期:2016-06-07 00:00:00

  • Acceptance of immersive head-mounted virtual reality in older adults.

    abstract::Immersive virtual reality has become increasingly popular to improve the assessment and treatment of health problems. This rising popularity is likely to be facilitated by the availability of affordable headsets that deliver high quality immersive experiences. As many health problems are more prevalent in older adults...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Huygelier H,Schraepen B,van Ee R,Vanden Abeele V,Gillebert CR

    更新日期:2019-03-14 00:00:00

  • Cysteine-silver-gold Nanocomposite as potential stable green corrosion inhibitor for mild steel under acidic condition.

    abstract::Cysteine based silver-gold nanocomposite (Cys/Ag-Au NCz) was synthesized, this was followed by its characterization using Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Ultraviolet-visible spectroscopy (UV-Vis), Scanning electron microscopy (SEM), Energy-dispersive X-ray spectroscopy (EDAX), ...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Basik M,Mobin M,Shoeb M

    更新日期:2020-01-14 00:00:00

  • Distribution bias analysis of germline and somatic single-nucleotide variations that impact protein functional site and neighboring amino acids.

    abstract::Single nucleotide variations (SNVs) can result in loss or gain of protein functional sites. We analyzed the effects of SNVs on enzyme active sites, ligand binding sites, and various types of post translational modification (PTM) sites. We found that, for most types of protein functional sites, the SNV pattern differs ...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Pan Y,Yan C,Hu Y,Fan Y,Pan Q,Wan Q,Torcivia-Rodriguez J,Mazumder R

    更新日期:2017-02-08 00:00:00

  • Increased Risk of Peptic Ulcers Following a Cholecystectomy for Gallstones.

    abstract::This retrospective cohort study examined the relationship between a cholecystectomy and the subsequent risk of peptic ulcers using a population-based database. Data for this study were retrieved from the Taiwan Longitudinal Health Insurance Database 2005. This study included 5209 patients who had undergone a cholecyst...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Tsai MC,Huang CC,Kao LT,Lin HC,Lee CZ

    更新日期:2016-07-29 00:00:00

  • Krüppel-like factor 6 is a transcriptional activator of autophagy in acute liver injury.

    abstract::Krüppel-like factor 6 (KLF6) is a transcription factor and tumor suppressor. We previously identified KLF6 as mediator of hepatocyte glucose and lipid homeostasis. The loss or reduction of KLF6 is linked to the progression of hepatocellular carcinoma, but its contribution to liver regeneration and repair in acute live...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Sydor S,Manka P,Best J,Jafoui S,Sowa JP,Zoubek ME,Hernandez-Gea V,Cubero FJ,Kälsch J,Vetter D,Fiel MI,Hoshida Y,Bian CB,Nelson LJ,Moshage H,Faber KN,Paul A,Baba HA,Gerken G,Friedman SL,Canbay A,Bechmann LP

    更新日期:2017-08-14 00:00:00

  • Expression of Female Sex Hormone Receptors, Connective Tissue Growth Factor and HER2 in Gallbladder Cancer.

    abstract::Gallbladder cancer (GBC) is a highly malignant tumor with poorly understood etiology. An insight into phenotypic features of this malignancy may add to the knowledge of its carcinogenesis and pave the way to new therapeutic approaches. We assessed the expression of female sex hormone receptors (ERα, ERβ, PR), connecti...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Hryciuk B,Pęksa R,Bieńkowski M,Szymanowski B,Radecka B,Winnik K,Żok J,Cichowska N,Iliszko M,Duchnowska R

    更新日期:2020-02-05 00:00:00

  • Strongly Coupled Magnetic and Electronic Transitions in Multivalent Strontium Cobaltites.

    abstract::The topotactic phase transition in SrCoO x (x = 2.5-3.0) makes it possible to reversibly transit between the two distinct phases, i.e. the brownmillerite SrCoO2.5 that is a room-temperature antiferromagnetic insulator (AFM-I) and the perovskite SrCoO3 that is a ferromagnetic metal (FM-M), owing to their multiple valen...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Lee JH,Choi WS,Jeen H,Lee HJ,Seo JH,Nam J,Yeom MS,Lee HN

    更新日期:2017-11-22 00:00:00

  • Synthesis of Sulfur-Selenium Doped Carbon Quantum Dots for Biological Imaging and Scavenging Reactive Oxygen Species.

    abstract::The sulfur-selenium doped carbon quantum dots (S,Se-CQDs) were synthesized by one-step through hydrothermal method in this study, which have high fluorescence quantum yield (43%) and advanced ability to scavenge reactive oxygen species (ROS). They were characterized by transmission electron microscope (TEM), nuclear m...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Huang G,Lin Y,Zhang L,Yan Z,Wang Y,Liu Y

    更新日期:2019-12-23 00:00:00

  • Three-dimensional Cardiomyocytes Structure Revealed By Diffusion Tensor Imaging and Its Validation Using a Tissue-Clearing Technique.

    abstract::We characterized the microstructural response of the myocardium to cardiovascular disease using diffusion tensor imaging (DTI) and performed histological validation by intact, un-sectioned, three-dimensional (3D) histology using a tissue-clearing technique. The approach was validated in normal (n = 7) and ischemic (n ...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Lee SE,Nguyen C,Yoon J,Chang HJ,Kim S,Kim CH,Li D

    更新日期:2018-04-27 00:00:00

  • Controlled scalable synthesis of uniform, high-quality monolayer and few-layer MoS2 films.

    abstract::Two dimensional (2D) materials with a monolayer of atoms represent an ultimate control of material dimension in the vertical direction. Molybdenum sulfide (MoS2) monolayers, with a direct bandgap of 1.8 eV, offer an unprecedented prospect of miniaturizing semiconductor science and technology down to a truly atomic sca...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Yu Y,Li C,Liu Y,Su L,Zhang Y,Cao L

    更新日期:2013-01-01 00:00:00

  • Magnesium prevents vascular calcification in vitro by inhibition of hydroxyapatite crystal formation.

    abstract::Magnesium has been shown to effectively prevent vascular calcification associated with chronic kidney disease. Magnesium has been hypothesized to prevent the upregulation of osteoblastic genes that potentially drives calcification. However, extracellular effects of magnesium on hydroxyapatite formation are largely neg...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Ter Braake AD,Tinnemans PT,Shanahan CM,Hoenderop JGJ,de Baaij JHF

    更新日期:2018-02-01 00:00:00

  • Goos-Hänchen shift of partially coherent light fields in epsilon-near-zero metamaterials.

    abstract::The Goos-Hänchen (GH) shifts in the reflected light are investigated both for p and s polarized partial coherent light beams incident on epsilon-near-zero (ENZ) metamaterials. In contrary to the coherent counterparts, the magnitude of GH shift becomes non-zero for p polarized partial coherent light beam; while GH shif...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Ziauddin,Chuang YL,Qamar S,Lee RK

    更新日期:2016-05-23 00:00:00

  • The Gαi-GIV binding interface is a druggable protein-protein interaction.

    abstract::Heterotrimeric G proteins are usually activated by the guanine-nucleotide exchange factor (GEF) activity of GPCRs. However, some non-receptor proteins are also GEFs. GIV (a.k.a Girdin) was the first non-receptor protein for which the GEF activity was ascribed to a well-defined protein sequence that directly binds Gαi....

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: DiGiacomo V,de Opakua AI,Papakonstantinou MP,Nguyen LT,Merino N,Blanco-Canosa JB,Blanco FJ,Garcia-Marcos M

    更新日期:2017-08-17 00:00:00

  • Comprehensive validation of T- and B-cell deficiency in rag1-null zebrafish: Implication for the robust innate defense mechanisms of teleosts.

    abstract::rag1 -/- zebrafish have been employed in immunological research as a useful immunodeficient vertebrate model, but with only fragmentary evidence for the lack of functional adaptive immunity. rag1-null zebrafish exhibit differences from their human and murine counterparts in that they can be maintained without any spec...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Tokunaga Y,Shirouzu M,Sugahara R,Yoshiura Y,Kiryu I,Ototake M,Nagasawa T,Somamoto T,Nakao M

    更新日期:2017-08-08 00:00:00

  • Time-resolved decoding of metabolic signatures of in vitro growth of the hemibiotrophic pathogen Colletotrichum sublineolum.

    abstract::Metabolomics has emerged as a powerful approach to comprehensively interrogate cellular biochemistry. As such, we applied an untargeted liquid chromatography-mass spectrometry metabolomic strategy to elucidate metabolome changes in the anthracnose-causing hemibiotrophic sorghum pathogen, Colletotrichum sublineolum. An...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Tugizimana F,Djami-Tchatchou AT,Fahrmann JF,Steenkamp PA,Piater LA,Dubery IA

    更新日期:2019-03-01 00:00:00

  • Endothelial dysfunction in systemic lupus erythematosus - a case-control study and an updated meta-analysis and meta-regression.

    abstract::Endothelium-dependent flow-mediated dilation (ED-FMD), a biophysical marker of endothelial dysfunction, is apparently impaired in patients with systemic lupus erythematosus (SLE) but such observation is inconsistent. Here, we assessed and compared the brachial artery ED-FMD (baED-FMD) using ultrasonography between SLE...

    journal_title:Scientific reports

    pub_type: 杂志文章,meta分析


    authors: Mak A,Kow NY,Schwarz H,Gong L,Tay SH,Ling LH

    更新日期:2017-08-04 00:00:00

  • Zinc depletion promotes apoptosis-like death in drug-sensitive and antimony-resistance Leishmania donovani.

    abstract::Micronutrients are essential for survival and growth for all the organisms including pathogens. In this manuscript, we report that zinc (Zn) chelator N,N,N',N'-tetrakis(2-pyridinylmethyl)-1,2-ethylenediamine (TPEN) affects growth and viability of intracellular pathogen Leishmania donovani (LD) by a concentration and t...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Saini S,Bharati K,Shaha C,Mukhopadhyay CK

    更新日期:2017-09-05 00:00:00

  • Identification of Genes Associated with Smad3-dependent Renal Injury by RNA-seq-based Transcriptome Analysis.

    abstract::Transforming growth factor-β/Smad3 signaling plays a critical role in the process of chronic kidney disease (CKD), but targeting Smad3 systematically may cause autoimmune disease by impairing immunity. In this study, we used whole-transcriptome RNA-sequencing to identify the differential gene expression profile, gene ...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Zhou Q,Xiong Y,Huang XR,Tang P,Yu X,Lan HY

    更新日期:2015-12-09 00:00:00

  • Elucidating the Performance Limitations of Lithium-ion Batteries due to Species and Charge Transport through Five Characteristic Parameters.

    abstract::Underutilization due to performance limitations imposed by species and charge transports is one of the key issues that persist with various lithium-ion batteries. To elucidate the relevant mechanisms, two groups of characteristic parameters were proposed. The first group contains three characteristic time parameters, ...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Jiang F,Peng P

    更新日期:2016-09-07 00:00:00

  • Health Benefits from Nature Experiences Depend on Dose.

    abstract::Nature within cities will have a central role in helping address key global public health challenges associated with urbanization. However, there is almost no guidance on how much or how frequently people need to engage with nature, and what types or characteristics of nature need to be incorporated in cities for the ...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Shanahan DF,Bush R,Gaston KJ,Lin BB,Dean J,Barber E,Fuller RA

    更新日期:2016-06-23 00:00:00

  • Flavonol-induced changes in PIN2 polarity and auxin transport in the Arabidopsis thaliana rol1-2 mutant require phosphatase activity.

    abstract::The phytohormone auxin is a major determinant and regulatory component important for plant development. Auxin transport between cells is mediated by a complex system of transporters such as AUX1/LAX, PIN, and ABCB proteins, and their localization and activity is thought to be influenced by phosphatases and kinases. Fl...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Kuhn BM,Nodzyński T,Errafi S,Bucher R,Gupta S,Aryal B,Dobrev P,Bigler L,Geisler M,Zažímalová E,Friml J,Ringli C

    更新日期:2017-02-06 00:00:00

  • MicroPattern: a web-based tool for microbe set enrichment analysis and disease similarity calculation based on a list of microbes.

    abstract::The microbiota colonized on human body is renowned as "a forgotten organ" due to its big impacts on human health and disease. Recently, microbiome studies have identified a large number of microbes differentially regulated in a variety of conditions, such as disease and diet. However, methods for discovering biologica...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Ma W,Huang C,Zhou Y,Li J,Cui Q

    更新日期:2017-01-10 00:00:00

  • Combining genetic markers with stable isotopes in otoliths reveals complexity in the stock structure of Atlantic bluefin tuna (Thunnus thynnus).

    abstract::Atlantic bluefin tuna (Thunnus thynnus) from the two main spawning populations in the Mediterranean and Gulf of Mexico occur together in the western, central and eastern Atlantic. Stock composition of catches from mixing areas is uncertain, presenting a major challenge to the sustainable management of the fisheries. T...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Brophy D,Rodríguez-Ezpeleta N,Fraile I,Arrizabalaga H

    更新日期:2020-09-07 00:00:00

  • Efficient and cost effective production of active-form human PKB using silkworm larvae.

    abstract::Protein kinase B (PKB) also known as Akt is involved in many signal transduction pathways. As alterations of the PKB pathway are found in a number of human malignancies, PKB is considered an important drug target for cancer therapy. However, production of sufficient amounts of active PKB for biochemical and structural...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Maesaki R,Satoh R,Taoka M,Kanaba T,Asano T,Fujita C,Fujiwara T,Ito Y,Isobe T,Hakoshima T,Maenaka K,Mishima M

    更新日期:2014-08-15 00:00:00

  • Characterization of a new case of XMLV (Bxv1) contamination in the human cell line Hep2 (clone 2B).

    abstract::The use of misidentified cell lines contaminated by other cell lines and/or microorganisms has generated much confusion in the scientific literature. Detailed characterization of such contaminations is therefore crucial to avoid misinterpretation and ensure robustness and reproducibility of research. Here we use DNA-s...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Loiseau V,Cordaux R,Giraud I,Beby-Defaux A,Lévêque N,Gilbert C

    更新日期:2020-09-29 00:00:00

  • Broadband photon-photon interactions mediated by cold atoms in a photonic crystal fiber.

    abstract::We demonstrate theoretically that photon-photon attraction can be engineered in the continuum of scattering states for pairs of photons propagating in a hollow-core photonic crystal fiber filled with cold atoms. The atoms are regularly spaced in an optical lattice configuration and the photons are resonantly tuned to ...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Litinskaya M,Tignone E,Pupillo G

    更新日期:2016-05-12 00:00:00

  • Mycobacterium tuberculosis exploits the formation of new blood vessels for its dissemination.

    abstract::The mechanisms by which the airborne pathogen Mycobacterium tuberculosis spreads within the lung and leaves its primary niche to colonize other organs, thus inducing extrapulmonary forms of tuberculosis (TB) in humans, remains poorly understood. Herein, we used a transcriptomic approach to investigate the host cell ge...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Polena H,Boudou F,Tilleul S,Dubois-Colas N,Lecointe C,Rakotosamimanana N,Pelizzola M,Andriamandimby SF,Raharimanga V,Charles P,Herrmann JL,Ricciardi-Castagnoli P,Rasolofo V,Gicquel B,Tailleux L

    更新日期:2016-09-12 00:00:00

  • Cilioretinal Arteries and Cilioretinal Veins in Eyes with Pathologic Myopia.

    abstract::We investigated the clinical characteristics of cilioretinal arteries (CAs) and cilioretinal veins (CVs) in eyes with pathologic myopia. Ninety-five eyes with pathologic myopia and CAs were studied. The retrobulbar vessels from which the CAs originated were identified by indocyanine green angiography (ICGA). The resul...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Watanabe T,Kasahara K,Futagami S,Fang Y,Du R,Moriyama M,Uramoto K,Yokoi T,Onishi Y,Yoshida T,Kamoi K,Jonas JB,Ohno-Matsui K

    更新日期:2019-02-21 00:00:00

  • In-Depth Characterization of Monocyte-Derived Macrophages using a Mass Cytometry-Based Phagocytosis Assay.

    abstract::Phagocytosis is a process in which target cells or particles are engulfed and taken up by other cells, typically professional phagocytes; this process is crucial in many physiological processes and disease states. The detection of targets for phagocytosis is directed by a complex repertoire of cell surface receptors. ...

    journal_title:Scientific reports

    pub_type: 杂志文章


    authors: Schulz D,Severin Y,Zanotelli VRT,Bodenmiller B

    更新日期:2019-02-13 00:00:00